3分钟关于全球变暖的英语演讲稿.docx

1、3分钟关于全球变暖的英语演讲稿3分钟关于全球变暖的英语演讲稿 3分钟关于全球变暖的英语演讲稿1In recent years do you think the weather suddenly turned hot had the cool autumn now almost until early October the hottest day in August has reached more than 40 degrees. These is different from normal vision we have ourselves to blame the curse.Today

2、the term global warming has gradually penetrated into our life. The word sounds very academic even feel very far away from us so some people are not. In fact the effects of global warming is beyond our imagination: global precipitation redistribution glaciers and permafrost melt rising sea levels an

3、d so on. Both harm the natural ecosystem balance more threatening human food supply and living environment.Now that you have aware of the dangers of global warming you should go to predict and improve it. Imagine if global warming is melting in the 21st century the global average temperature rising

4、gradually so the next super storms the next round of searing heat the next major natural disasters will happen? China? The United States? Japan? No one knows. The debate has ended. Scientists around the world agree points out that the earths average temperature has increased nearly 1 . Due to all th

5、e early warning information human use of thousands of ships tens of thousands of the monitoring stations of the land and outer space satellite to monitor the earth together. Scientists will have the most advanced computer data input model to estimate the earth can face the future. Prediction results

6、 are worrying. Forty years later the Himalayan glaciers the water to the survival of millions of people are likely to disappear. The Greenland ice sheet could melt in 50 years. Currently half of the worlds biodiversity in the amazon rainforest but the rainforest is likely to turn into a piece of bar

7、ren land by the end of the century. Is likely to be the future of the world like in the movie the day after tomorrow tornado ice fracture the temperature fell sharply ice storms freezing rain earthquake flood tsunami volcanic eruption. This is not a crazy fantasy if humans dont stop destroying the e

8、nvironment it will become a reality!However in the warming is also good. Global warming on rice in heilongjiang province has played a large role.Just global warming to human future development is still the do more harm than good.In order to save the planet we should try to be: dont open air conditio

9、ning use recycled paper environmental protection to leave the meat with nitrous oxide dont use plastic bags R22 by bus; R22; Little drops of life. Actually its not difficult to environmental protection as long as you support environmental protection is the best gift you gave the planet.Thank you all

10、!3分钟关于全球变暖的英语演讲稿2Many people believe that human activity is causing the earths temperature to rise. They say that this global warming will have dreadful consequences for our environment, such as drought and flooding.The earths temperature is rapidly changing. As a result there has been a lot of clim

11、ate change such as heat waves, droughts and floods. Scientists believe that this is the result of human activity, which is polluting the Earths atmosphere. This could become a disaster if governments do not act to help prevent global warming. They can act in three ways; by supporting research, by ma

12、king laws and by keeping the general public informed.Firstly, governments can support research. For example, they should encourage companies to develop vehicles that cause less pollution. They should also support alternative sources of electricity from wind and water rather than from oil and coal. A

13、s well, they should sponsor conferences to discuss the effects of greenhouse gas emissions and possible solutions to the problem.Secondly, they should make laws that limit the amount of greenhouse gases that companies can emit. Private companies should be rewarded for following these laws. They shou

14、ld also be punished for creating pollution.Finally, everybody is affected by global warming. Therefore, it is important that governments involve individuals in the problem solving process. For example they should encourage households to save as much energy as possible by using more efficient light b

15、ulbs or less hot water. They should also encourage the public to recycle, and this should be compulsory for everyone. Another way of saving energy is by public transport systems. Governments should spend money on public transport to make it as easy as possible for the public to save energy.In summar

16、y, it is clear that there are a lot of things that governments can do to prevent global warming. They should involve companies, support scientists and encourage individuals to protect the planet.3分钟关于全球变暖的英语演讲稿3global warming the gradual increase of the temperature of the earths lower atmosphere as

17、a result of the increase in greenhouse gases since the Industrial Revolution.The temperature of the atmosphere near the earths surface is warmed through a natural process called the greenhouse effect. Visible shortwave light comes from the sun to the earth passing unimpeded through a blanket of ther

18、mal or greenhouse gases composed largely of water vapor carbon dioxide methane nitrous oxide and ozone. Infrared radiation reflects off the planets surface toward space but does not easily pass through the thermal blanket. Some of it is trapped and reflected downward keeping the planet at an average

19、 temperature suitable to life about 60F (16C).Growth in industry agriculture and transportation since the Industrial Revolution has produced additional quantities of the natural greenhouse gases plus chlorofluorocarbons and other gases augmenting the thermal blanket. It is generally accepted that th

20、is increase in the quantity of greenhouse gases is trapping more heat and increasing global temperatures making a process that has been beneficial to life potentially disruptive and harmful. During the past century the atmospheric temperature has risen 1.1F (0.6C) and sea level has risen several inc

21、hes. Some projected longer-term results of global warming include melting of polar ice with a resulting rise in sea level and coastal flooding; disruption of drinking water supplies dependent on snow melts; profound changes in agriculture due to climate change; extinction of species as ecological ni

22、ches disappear; more frequent tropical storms; and an increased incidence of tropical diseases.Improved automobile mileage reforestation projects energy efficiency in construction and national support for mass transit are among relatively simpler adjustments that could significantly lower U.S. produ

23、ction of greenhouse gases. More aggressive adjustments include a gradual worldwide shift away from the use of fossil fuels the elimination of chlorofluorocarbons and the slowing of deforestation by restructuring the economies of developing nations. In 20_the Bush administration proposed several volu

24、ntary measures for slowing the increase in instead of reducing emissions of greenhouses gases.3分钟关于全球变暖的英语演讲稿4Global WarmingThere is little doubt that the planet is warming. Over the last century, the planets temperature has risen by around 1 degree fahrenheit (0.6 of a degree celsius). The warmest

25、since the mid 1800s was the 1990s. The hottest years recorded were 1997, 1998, 2001, 2002, 2003.The United Nations panel on climate change projects that the global temperatures will rise 3-10 degrees fahrenheit by the centurys end - enough to have the polar caps all but melted. If the ice caps melt,

26、 a vast majority of our countries borders will be under water. Monuments and great buildings, as well as homes and lives will be under water, including New York City.So now we know what some of the causes are for global warming, how can we as individuals do our part to help save the planet?The answe

27、r is simpler than you may think. You dont have to go miles away from home to protest, or spend masses of money. If you try to follow the few simple steps that I shall now give you, you will have started to help us all.Firstly, plant a tree. This could be easier than it sounds. Join or help out a loc

28、al wildlife group and ask to plant a tree. Trees, when fully grown, will help keep the planet cooler. On the same point, you could protest against the demolition of the rainforests. This is the same principle, we need the trees to cool our planet and yet they are chopping them down to create roads o

29、r homes.Something as simple as walking instead of taking the car will help reduce pollution. As well as stopping pollution, you are giving yourself exercise, something important for our bodies. So the next time you get into your car, or your motorbike, think - do I have to make this journey by vehic

30、le or can I walk?When you are at home, and your getting a little cold. Put a jumper on and do not adjust the heating. The extra heat produced by our homes also affects the planet. So try wearing an extra layer in winter.If possible, buy your fruit and vegetables from local suppliers. And try to avoi

31、d imported goods. The more foreign food that we import the more pollution from aeroplanes and boats it will create.Keeping to the speed limit can also help the environment. The more you speed the more petrol you are going to use, making the pollution higher. Also, SUVs make about six times their own

32、 weight in CO2 each year. A small efficient diesel car covering the same distance not only uses much less fuel; it makes two thirds less.If possible use solar energy, after all it is free; all you need to buy is the equipment. You can get much of your hot water and heating from the sun and even generate electricity.Reduce, reuse and recycle. Only buy what you need; dont stock the cupboards with things you may or may not use. Reuse whatever you can, like containers and paper, and recycle what you cannot reuse. It really is as simple as that.